How to Tell the Quads Apart

Tan Chaoyun is the mother of identical quadruplet boys. The six-year-olds are starting school, and teachers at the local primary school in China are concerned over how to tell the four boys apart. So, Tan ordered them all different haircuts. The barber shaved their heads, leaving a small patch on each boy's head in the shape of the numbers one, two, three, and four! The numbers will help at home, too, because even the quads' father has a hard time telling which son is which.  (via Arbroath)